html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans SC', sans-serif; -webkit-font-smoothing: antialiased; }
.outline-toggle { display: inline-block; }
.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 课程更新滚动区 */
.overflow-y-auto::-webkit-scrollbar { width: 4px; }
.overflow-y-auto::-webkit-scrollbar-track { background: transparent; }
.overflow-y-auto::-webkit-scrollbar-thumb { background: #ddd; border-radius: 2px; }